Goat format ruling
Zolga

Card effect (current official text)When a monster is Tribute Summoned by Tributing this card: The owner of this card gains 2000 Life Points.
Rulings
- When your opponent Tribute Summons with your Zolga using Soul Exchange, the controller of Zolga increases his LP.
- When your opponent takes your Zolga with Change of Heart and Tribute Summons with it, your opponent (the controller of Zolga when it was Tributed) increases his LP.
- When a Tribute Summon using Zolga is negated by Solemn Judgment, you don't increase your LP.
- The effect of Zolga can be chained to, and is Step 1 of a chain after a successful Summon. Effects like Trap Hole would be Step 2.
- When you Tribute Summon with 2 Zolgas, both Zolgas effects are activated.
- Q: Does "Zolga’s" LP increase effect also apply to Ritual Tribute requirements? A: Nope. "Zolga"’s effect only applies to a Tribute Summon or Set. A Ritual Summon, although requiring Tributes, only counts as a Ritual Summon/Special Summon.
- Q: When does "Zolga’s" effect activate? Can you chain to it? A: The effect of Zolga activates after the Tribute Summoned monster has been successfully Tribute Summoned. (Not negated by Horn of Heaven or Solemn Judgement.) You can chain to the effect of Zolga, but if Jinzo is the monster that was Tribute Summoned you would not be able to activate any Traps.
- Q: When is "Zolga’s" effect activated and will it be negated by "Skill Drain"? A: After the monster is offered for the Tribute Summon. Skill Drain will not be able to negate this.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.